21222000032 has 24 divisors (see below), whose sum is σ = 42164129700. Its totient is φ = 10513649664.

The previous prime is 21222000029. The next prime is 21222000061. The reversal of 21222000032 is 23000022212.

It can be written as a sum of positive squares in 2 ways, for example, as 19780734736 + 1441265296 = 140644^2 + 37964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21221999980 and 21222000016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3038657 + ... + 3045632.

Almost surely, 2^21222000032 is an apocalyptic number.

It is an amenable number.

21222000032 is a deficient number, since it is larger than the sum of its proper divisors (20942129668).

21222000032 is a wasteful number, since it uses less digits than its factorization.

21222000032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084408 (or 6084400 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 21222000032 its reverse (23000022212), we get a palindrome (44222022244).

The spelling of 21222000032 in words is "twenty-one billion, two hundred twenty-two million, thirty-two", and thus it is an aban number.